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John J. GrilloAgree with Jim F...KSA really tries to slab authentic-only cards. Rick at KSA is knowledgeable of hockey, pre-war hockey, OPC hockey, etc. A good source for Canadian Hockey card collectors, who do not have to put up with the hassle of customs back and forth between US and Canada.
Just my opinion, I would not put them up there with the likes of GAI or SGC in terms of knowledge of vintage baseball, but they are legit nonetheless.